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Wraps either an existing OutputStream or an existing Writerand provides
convenience methods for prin
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Represents a command that can be executed. Often used to run code in a different
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Produces concatenated messages in language-neutral way. New code should probably
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LinkedHashMap is an implementation of Map that guarantees iteration order. All
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A task that returns a result and may throw an exception. Implementors define a
single method with no
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